Security
Computer security experts have developed a system capable of guessing computer and smartphone users' passwords in seconds by analyzing the traces of heat their fingertips leave on keyboards and screens.
Oct 10, 2022
0
695
Computer Sciences
An interdisciplinary team of researchers at Northeastern have built a device that can recognize "millions of colors" using new artificial intelligence techniques—a massive step, they say, in the field of machine vision, ...
Oct 6, 2022
0
254
Business
Snap has decided to chop nearly 500 jobs in California, including scores of layoffs in the Bay Area, a brutal round of cost-cutting ushered in by a string of setbacks in the financial results for the Snapchat owner.
Sep 9, 2022
0
4
Internet
Fifteen years after its launch, a Google Maps feature that lets people explore faraway places as though standing right there is providing a glimpse of the metaverse being heralded as the future of the internet.
Sep 2, 2022
0
156
Hardware
As any driver knows, accidents can happen in the blink of an eye—so when it comes to the camera system in autonomous vehicles, processing time is critical. The time that it takes for the system to snap an image and deliver ...
Aug 26, 2022
0
90
Telecom
An agreement signed yesterday looks to extend the use of ESA space technology along European roads. The Agency's Navigation Directorate has finalized a Memorandum of Intent with ERTICO, the organization for the European Road ...
Aug 24, 2022
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16
Software
One afternoon in our lab, my colleague and I were testing our new prototype for a facial recognition software on a laptop. The software used a video camera to scan our faces and guess our age and gender. It correctly guessed ...
Aug 18, 2022
1
23
Telecom
Researchers at the National Institute of Standards and Technology (NIST) have adapted their atom-based radio receiver to detect and display live color television and video games.
Aug 18, 2022
0
517
Security
Over the past decade, digital cameras have been widely adopted in various aspects of our society, and are being massively used in mobile phones, security surveillance, autonomous vehicles, and facial recognition. Through ...
Aug 15, 2022
1
165
Robotics
QUT robotics researchers working with Ford Motor Company have found a way to tell an autonomous vehicle which cameras to use when navigating.
Aug 8, 2022
1
70
A camera is a device that records images, either as a still photograph or as moving images known as videos or movies. The term comes from the camera obscura (Latin for "dark chamber"), an early mechanism of projecting images where an entire room functioned as a real-time imaging system; the modern camera evolved from the camera obscura.
Cameras may work with the light of the visible spectrum or with other portions of the electromagnetic spectrum. A camera generally consists of an enclosed hollow with an opening (aperture) at one end for light to enter, and a recording or viewing surface for capturing the light at the other end. A majority of cameras have a lens positioned in front of the camera's opening to gather the incoming light and focus all or part of the image on the recording surface. The diameter of the aperture is often controlled by a diaphragm mechanism, but some cameras have a fixed-size aperture.
A typical still camera takes one photo each time the user presses the shutter button. A typical movie camera continuously takes 24 film frames per second as long as the user holds down the shutter button.
This text uses material from Wikipedia, licensed under CC BY-SA
